Commit 655a0355 authored Oct 05, 2015 by Thierry Reding

pwm: Return -ENODEV if no PWM lookup match is found

When looking up a PWM using the lookup table, assume that all entries
will have been added already, so failure to find a match means that no
corresponding entry has been registered.

This fixes an issue where -EPROBE_DEFER would be returned if the PWM
lookup table is empty. After this fix, -EPROBE_DEFER is reserved for
situations where no provider has yet registered for a matching entry.

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

parent f6649f7a

drivers/pwm/core.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -738,8 +738,10 @@ struct pwm_device pwm_get(struct device dev, const char *con_id)
		}
		}

		if (!chosen)
		if (!chosen) {
		pwm = ERR_PTR(-ENODEV);
		goto out;
		}

		chip = pwmchip_find_by_name(chosen->provider);
		if (!chip)